Speaker
Masahiro Yano
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P4.2034.pdf
Interaction of multi-PW class laser pulses with underdense plasmas
M. Yano 1, A. Zhidkov2, R. Kodama1,2,3
1
Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka
565-0871, Japan
2
Country Photon Pioneers Center, Osaka University, 2-1, Yamadaoka, Suita, Osaka
565-0871, Japan
3
Country Institute of Laser Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka
565-0871, Japan
Petawatt class femtosecond lasers and x-ray free electron lasers open up a new page in
research fields related to space and vacuum physics. Regular electron sub-systems
undergoing super-acceleration generated by these new instruments, which may be important
experimental objects for vacuum and space-time researches, are shown to be created in
underdense plasma irradiated by multi-PW laser pulses with intensity over 1022 W/cm2. For
the first time interaction of multi-PW laser pulses with underdense plasma, in the regime of
strong relativistic wave-breaking, is investigated via 3D particle-in-cell simulation. Effects
of pulse self-focusing, ion motion, and radiation reaction on the interaction and formation of
regular electron sub-systems under super-acceleration are examined. We estimate scattering
broadening of Thomson scattering from the electron sub-system for detection of space time
effects.
